package com.nowcoder.community.aspect;

import lombok.extern.slf4j.Slf4j;
import org.aspectj.lang.JoinPoint;
import org.aspectj.lang.annotation.Aspect;
import org.aspectj.lang.annotation.Before;
import org.aspectj.lang.annotation.Pointcut;
import org.springframework.stereotype.Component;
import org.springframework.web.context.request.RequestContextHolder;
import org.springframework.web.context.request.ServletRequestAttributes;

import javax.servlet.http.HttpServletRequest;
import java.text.SimpleDateFormat;
import java.util.Date;

/**
 * @author 花木凋零成兰
 * @date 2024/3/16 21:31
 */
@Component
@Aspect
@Slf4j(topic = "ServiceLogAspect.class")
public class ServiceLogAspect {

    @Pointcut("execution(* com.nowcoder.community.service.*.*(..))")    // 切点
    public void pointcut() {

    }

    @Before("pointcut()")
    public void before(JoinPoint joinPoint) {
        // 用户[1.2.3.4],在[xxxx]，访问了[com.nowcoder.community.service.xxx()].
        // 获取request
        ServletRequestAttributes attributes = (ServletRequestAttributes)RequestContextHolder.getRequestAttributes();
        if (attributes == null) {
            log.error("特殊调用!");
            return ;
        }
        HttpServletRequest request = attributes.getRequest();
        String ip = request.getRemoteHost();
        String now = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss").format(new Date());
        // 访问的 类名.方法名
        String target = joinPoint.getSignature().getDeclaringTypeName() + "." + joinPoint.getSignature().getName();
        log.info(String.format("用户[%s],在[%s],访问了[%s].", ip, now, target));
    }

}
